{ "id": "1402.7303", "version": "v2", "published": "2014-02-28T16:21:21.000Z", "updated": "2014-06-13T17:32:21.000Z", "title": "The Non-Commutative Geometry of the Complex Classes of Topological Insulators", "authors": [ "Emil Prodan" ], "comment": "Final version", "journal": "Topol. Quantum Matter 1, 1-16 (2014)", "doi": "10.2478/topor-2014-0001", "categories": [ "math-ph", "cond-mat.dis-nn", "math.MP", "math.OA" ], "abstract": "Alain Connes' Non-Commutative Geometry program [Connes 1994] has been recently carried out [Prodan, Leung, Bellissard 2013, Prodan, Schulz-Baldes 2014] for the entire A- and AIII-symmetry classes of topological insulators, in the regime of strong disorder where the insulating gap is completely filled with dense localized spectrum. This is a short overview of these results, whose goal is to highlight the methods of Non-Commutative Geometry involved in these studies. The exposition proceeds gradually through the cyclic cohomology, quantized calculus with Fredholm-modules, local formulas for the odd and even Chern characters and index theorems for the odd and even Chern numbers. The characterization of the A- and AIII-symmetry classes in the presence of strong disorder and magnetic fields emerges as a natural application of these tools.", "revisions": [ { "version": "v2", "updated": "2014-06-13T17:32:21.000Z" } ], "analyses": { "keywords": [ "topological insulators", "complex classes", "aiii-symmetry classes", "strong disorder", "magnetic fields emerges" ], "tags": [ "journal article" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2014arXiv1402.7303P" } } }